<template>
  <div>
    <el-dialog
      title="双击选择商户"
      :visible.sync="mchTableVisible"
      width="650px"
      v-el-drag-dialog
      append-to-body
      :before-close="mchTableClose">
      <div style="position: relative;">
         <sysMch @mchDouble="mchDouble"></sysMch>
      </div>
    </el-dialog>
    <el-breadcrumb class="app-breadcrumb" separator="/">
      <transition-group name="breadcrumb">
        <el-breadcrumb-item v-for="(item,index) in levelList" :key="item.path">
          <el-select v-if="index == 0" v-model="sysMchName"  :style="{width:textNumber}" placeholder="请选择商户" filterable
                     value-key="id" :filter-method="querySysmch" @change="changeSysMch">
            <el-option style="width:300px" v-for="item in mchIdOptions" :key="item.id" :label="item.name" :value="item">
            </el-option>
            <div style="display: flex;width: 100%;position: absolute;bottom: 0">
              <div style="width: 50%;background-color: rgb(248,248,248);"></div>
              <div class="elOption" @click="sysClick">搜索商户</div>
            </div>
            <div style="height: 40px"></div>
          </el-select>
          <span v-if="index != 0 && index!=levelList.length-1" style="margin-left: 10px;margin-right: 10px"> {{ generateTitle(item.meta.title) }}</span>
          <span v-if="index != 0 && index==levelList.length-1"  style="margin-left: 10px;margin-right: 10px" class="no-redirect"> {{ generateTitle(item.meta.title) }}</span>
          <!--        <span v-if="item.redirect==='noRedirect'||index==levelList.length-1" class="no-redirect">-->
          <!--          {{ generateTitle(item.meta.title) }}-->
          <!--        </span>-->
          <!--        <a v-else @click.prevent="handleLink(item)">{{ generateTitle(item.meta.title) }}</a>-->
        </el-breadcrumb-item>
      </transition-group>
    </el-breadcrumb>
  </div>
</template>

<script>
import { generateTitle } from '@/utils/i18n'
import pathToRegexp from 'path-to-regexp'
import { list as sysMchList } from '@/api/sysMch'
import { mapGetters } from 'vuex'
import elDragDialog from '@/directive/el-drag-dialog'
import sysMch from '@/components/SysMch/index'
import permission from '@/directive/permission' // base on element-ui
export default {
  data() {
    return {
      levelList: null,
      mchIdOptions: [],
      sysMchId:'',
      sysMchName:'',
      mchTableVisible:false,
      textNumber:null
    }
  },
  directives: {elDragDialog},
  watch: {
    $route(route) {
      // if you go to the redirect page, do not update the breadcrumbs
      if (route.path.startsWith('/redirect/')) {
        return
      }
      this.getBreadcrumb()
    }
  },
  created() {
    this.getBreadcrumb()
    this.loadSysmch()
    this.sysMchId = this.mchId
    this.sysMchName = this.mchName
    this.textTitle(this.sysMchName)
  },
  computed: {
    // text () {
    //   return function (value) {
    //     if (value == '' || value == 0) {
    //       return '100%'
    //     } else {
    //       return String(value).length * 20 + 'px'
    //     }
    //   }
    // },
    ...mapGetters([
      'mchId', 'mchName'
    ])
  },
  components:{
    sysMch
  },
  methods: {
    generateTitle,
    getBreadcrumb() {
      // only show routes with meta.title
      let matched = this.$route.matched.filter(item => item.meta && item.meta.title)
      const first = matched[0]
      if (!this.isDashboard(first)) {
        matched = [{ path: '/dashboard', meta: { title: 'dashboard' }}].concat(matched)
      }
      this.levelList = matched.filter(item => item.meta && item.meta.title && item.meta.breadcrumb !== false)
    },
    isDashboard(route) {
      const name = route && route.name
      if (!name) {
        return false
      }
      return name.trim().toLocaleLowerCase() === 'Dashboard'.toLocaleLowerCase()
    },
    pathCompile(path) {
      // To solve this problem https://github.com/PanJiaChen/vue-element-admin/issues/561
      const { params } = this.$route
      var toPath = pathToRegexp.compile(path)
      return toPath(params)
    },
    handleLink(item) {
      const { redirect, path } = item
      if (redirect) {
        this.$router.push(redirect)
        return
      }
      this.$router.push(this.pathCompile(path))
    },
    loadSysmch(query) {
      sysMchList({
        name: query
      }).then(res => {
        this.mchIdOptions = res.data.data
      }).catch(err => {
        console.log(err)
      })
    },
    querySysmch(query) {
      this.loadSysmch(query)
    },
    mchDouble(data){
      console.log(data)
      this.$store.dispatch('user/sysMch', data.id).then(() => {
        this.mchTableVisible = false
        this.sysMchId = data.id
        this.sysMchName=data.name
        this.$message('切换成功')
        this.closeAllTags()
      }).catch(() => {})
    },
    changeSysMch(data) {
      console.log(data)
      this.$store.dispatch('user/sysMch', data.id).then(() => {
        this.$message('切换成功')
        this.textTitle(data.name)
        this.closeAllTags()
      }).catch(() => {})
    },
    textTitle (value) {
        console.log(value)
        if (value == '' || value == 0) {
          this.textNumber = '100%'
        } else {
          this.textNumber =  String(value).length * 20 +20+ 'px'
          console.log(this.textNumber)
        }
    },
    closeAllTags(view) {
      console.log()
      this.$store.dispatch('tagsView/delAllViews').then(({ visitedViews }) => {
        console.log(visitedViews)
        this.$router.push('/')
      })
    },
    sysClick(){
      this.mchTableVisible = true
    },
    mchTableClose(){
      this.mchTableVisible = false
    }
  }
}
</script>

<style lang="scss" scoped>
.app-breadcrumb.el-breadcrumb {
  display: inline-block;
  font-size: 14px;
  line-height: 50px;
  margin-left: 8px;

  .no-redirect {
    color: #97a8be;
    cursor: text;
  }
}
/deep/.el-input__inner{
  border: none;
  padding-left: 0;
}
/deep/.el-breadcrumb__separator{
  margin: 0;
}

.elOption {
  background-color: #909399;
  color: white;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50%;
  height: 40px
}
/deep/.el-dialog__body{
  padding-top: 0 !important;
  padding-bottom: 20px;
}
</style>
